Rafia Tabassum, Muhammad Saieh, Badaruddin. “Comparison of the Effects of Ketorolac to Acetaminophen When Adder to Lidocaine for Intravenous Regional Anesthesia”. Journal of Peoples University of Medical &Amp; Health Sciences Nawabshah. (JPUMHS), vol. 3, no. 2, Dec. 2013, pp. 46-52, http://121.52.155.46/index.php/ojs/article/view/119.